No. 7. DEPARTMENT OF AGRICULTURE. 125 



decrease iu the iiuiuber I'ouiid to be diseased and destroyed. This 

 improA^emeut is the result of the close supervision of all the horse 

 markets, bazaars and public sah-s stables in (.he city, and of the 

 liearty co-operation of ihe proprietors of these establishments, 

 local veterinarians and the agents of the Society for the Prevention 

 of Cruelty to .Vnimals. The laboratory has also been of great service 

 in this work in making the agglutination test ,and inoculations in 

 doubtful clinical cases or a typical niallein reaction. 



EPIZOOTIC LYMPHANGITIS. The greater number of cases of 

 this disease found during the year were located in Clarion, Jefferson 

 and Butler countiei*. A few cases were also discovered in each 

 of the following counties: Allegheny, Bradford, Crawford, Cameron, 

 Clearfield, Elk, Forest, Lawrence, Mercer, Montgomery and Ye- 

 nango. The methods of combatting this disease were outlined 

 in the last annual report. Cases in which the disease is not 

 extensive are placed in quarantine and treatment prescribed, and 

 when recovery has apparentl}' occured the conditions of the quaran- 

 tine are modified in such a manner as to permit the animal to be 

 used under proper precautions but requiring the owner to keep it in 

 his custody, so that it can be kept under observation and control. 

 Cases in which treatment appears to be inadvisable are appraised 

 and destroyed. Thirty-five aninrals were destroyed during the year. 



There is reason to believe that no extension of the disease to 

 new territory has occurred since the measures to repress it were 

 instituted. Information regarding the treatment of the disease is 

 given in the portion of this report referring to the work in the 

 laboratory and on the farm. 



BACTERIAL DYSENTERY. The first report of the existence of 

 this disease in the United States was made by Dr. Pearson in the 

 annual report for 1907, in which reference was made to a number of 

 cases that were found in herds in the eastei-n part of the State. 

 Since then the disease has been observed in Minnesota and Wis- 

 consin, in Virginia cattle, and in an imported Jersey heifer at the 

 quarantine station of the United States Bureau of Animal Lidustry 

 at Athenia, N. J. 



During the past year the disease has been reported in the State by 

 veterinarians in seven herds located in five counties. In two herds, 

 one in Montgomery and one in Northampton county, the diagnosis 

 was confirmed by laboratory examination. Arrangements have 

 been made to continue the study of this disease as opportunities 

 may occur and to endeavor to work out a more satisfactory method 

 of control and treatment. 



ACTINOMYCOSIS. A few cases of this disease of cattle, commonly 

 called "lump jav/" or "big jaw" have been r(q>orted. Aside from 

 supplying information regarding the nature of the disease and 

 its curability, the action taken has been directed to preventing 

 the sale of milk from cows in which the tumor had ruptured and 

 was discharging, there being a possibility in such cases of the milk 

 being contaminated with the organisms of suppuration as well as 

 with the fungus that produces the disease; and in providing proper 

 inspection for such of the animals as were slaughtered. These 

 latter examinations were made by the agents of the Meat Hygiene 



